Java/1.TwoSum.java
class Solution {
    public int[] twoSum(int[] nums, int target) {
        int[] ans = new int[2];
        int i;
        int j;
        for (i=0; i < nums.length - 1; i++) {
            for (j= i + 1; j < nums.length; j++){
                if (nums[i] + nums[j] == target){
                    ans[0] = i;
                    ans[1] = j;
                }   
            }
        }
         return ans;
    }  
}